Pabketon



i UNITED STATES f v4,PATEN T j OFFICE.

GEORGE WASHINGTON rAEKErON,

rro DANIEL r. GOGGANs AND EEANKfr.v MCGOWAN, Bornl OE -LAUEENs COUNTY,SOUTH CAROLINA.

BOlLER-FUIRNAOE. f

SPECIFIGATION forming part of Letters Patent No. 381,082., dated april10, 1888. K Application filed August 23, 1887. Serial No. 247.678. Nomodel.)

To all whom it may concern: i

vBe it known that-I, GEORGE WASHINGTON PARKETON, a citizen of the'UnitedStates, and a resident of Laurens, in the county of Laurens and State ofSouth Carolina, have `invented reference marked thereon, which form apart of this specification. v r 5 Figure 1 of the drawings is averticallongitudinal section of aboiler, showingmy improved furnace.

tion. Fig. 3 is a bottom view of my improved f furnace. Fig. 4 is adetail top lview of gratezo bars.

The invention relates to improvements in boiler-furnaces,. the obj ectbeing 'to :prevent the rusting or destruction of the grate-bars, and toprovide means for water; and it consists in the construction and novelcombination of parts, as hereinafter described, and ypointed out in theclaims.

, Referring to the drawings by letter, `A designates the fire-box of aboiler, having double 3o walls and the parallel tube-bars B, partiallyforming its base. Thesaid tube-bars are connected at their alternateends by the crosstubes b b, so that a continuous flow of waterv throughthe system of pipes can be estab-5 lished.

Rising from the ytubes B, at equal distances apart, are the rectangularwater -boxes C, which are of equal size, preferably, and which form thetop portion of the grate for the fire- 40 box.

. The manner of attaching theboxes C to the tubes B, as shown in thedrawings, is as fol-I lows: Vertical tubular openingsz' extend from lthe tubes'Band communicate with theinterior thereof. The boxes() areplaced on the upperends of saidtubes i, so that the openings z" in thebottom of the boxes communicate with the openingsz and the tubes B. The

boxes are secured in place by the depending 5o bolts k, passing throughthe openings in the lugs k', outstanding from the tubes B.

Fig. 2` is a transverse secheating the feed` E is'an inlet water-tubeattached to and communicating` with atube, B, on one side,vll anddelivering Water from a tank or other. l

sourceof supply into the boiler at Z. y `F is a rectangularframe, thebars of which intersect and extend between'the chambers C. This framecan be raised and lowered by means hereinafter described.

G and H are two transverse shafts oscillat-f OE LAUEENs, lAss'rGNOE OEONE-HALE' ing in'bearings secured to the bottom of the fire-box, andprovided, respectively, with the dependingarms g and h, connected by therlinkyrod I. The shaft G has o n its end, extended outside of a bearing,the detachable handle J,

and the two shafts G- and H are respectively provided with and L, whichthe rectangular frame-F, so thatby vibrating said handle the said framewill be raised and" lowered. The frame Fthus constitutes a part theinwardly-standing shaftsKI have their ends pivotedqupon of the grate ofthe device, and when llowered 5 to its normal positionhas its upper edgebelow the tops of theJ rectangular water-chambers C,

yso that it is notgliable to be burned. l,In this position it restsuponthe tube-bars `B. When v the frame F isturned up yby means ofthehandle, it rises above the chambers C and .stirs upthe fuel and loosensthe same, sothat combustion is accelerated.` The' water-'whichis comesheated in its passage, and steam is therefore more quickly generated inthe g. boiler proper, while the expenditure of fufel'is less.- The gratethus has its lbars tubular and flooded fed through the tube-bars into`the boiler beinternally Withwater, so thatk they cannotcor rode or rustout, orbe 'burnedby the action of 'V the fire.

Havingdescribed my invention, what Iclaim, .f

and desire to secure by Letters Patent, is-' 1. In combination `With adouble-wall'bolerfurnace, the hollowgrate-bars closed; at their outerends and connected byk transverse tubes,A andhaving the inlet-pipey for4the feed-water and the tube connecting the grate with; the boiler7substantially as specified. f f

2. In a fire-box, `the combination, vwith the tube-bars forming partofthe grate, of thewaterl n boxes risingfrom and communicating with said'f l roe tube-bars and forming the upper surface of the grate,substantially as` specified. t .3 In a fire-box, the cy ombination oftheter-tube forming part of the grate, the rectwater-boxes c, forming theupper surface of angular Water-chambers rising from and com the grate,of the shaking frame F, having inmunieating with said tube and formingthe uptersecting bars and devices for operating the per surface of thegrate, and the shaking frame same, substantially as specified.

5 havingits bars between the sides of said oham- In testimony whereofIaffix my signature in [5 ber and movedupward and downward by presence oftwo witnesses. means substantially as specified. GEORGE WASHINGTONPARKETON.

4. In a boiler-furnace, the'combination, with Vitnesses: the tube-barsB, connected at their alternate C. J. HUNT, 1o ends by the transversetubes b and having the J. W. SHELL.

